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Postings from June 2012
This is a proposal for a simple implementation of something like Dave Golden suggested to deal with deprecations in the Perl language. And that is to have a release cycle where the to-be-removed construct would be "pre-deprecated", where no warning messages are raised unless explicitly requested by the user; and then a release cycle where a standard deprecated warning is raised. In the 5.16 delta, we issued some pre-deprecation notices, but there is no mechanism to tell someone that the code they are running has or doesn't have the issues. I propose a new command line option to turn on pre-deprecation warnings. This could be the -P flag, which has been unused since 5.12, or a new option to the -D flag, one which would be valid on non-DEBUGGING builds. A pre-deprecation warning could not be packed with others, could not be turned on or off with the warnings pragma or other command line options such as -W or -X. It would not be lexical scoped. Hence, it would apply to included modules If someone wanted to see if something is going to be deprecated, they would use the command line option, explicitly or in $PERL5OPTThread Next